Coffee-pot.



" TE S JOSEPE EDWARD JOHNSON, F MERIDEN, CONN EGTICUT.

COFFEE-POT.

Application filed June 3, 1912.

Specification of Letters Patent.

Patented Apr. 15, 1913. semi in). 701,341.

To all whom it may can earn:

Be it known that I. JOSEPH ED\VARD JOHN- soN, a citizen of the UnitedStates, residing at Meriden, in the county of New Haven and State ofConnecticut, have invented a new and useful Improvement in Coffee-Pots:and T do hereby declare the following, when -aken in connection with theaccompanying drawings and the characters of reference marked thereon, tobe a full, clear, and exact description of the same, and which saiddrawings constitute part of this application. and represent in" Figure 1a side view partly in section of a coffee pot constructed in accordancewith my invention. Fig. 2 a vertical sectional view showing the valvechamber and valve block with the coiiperating parts. Fig. 3 a side viewof the valve block detached. Fig. 4- a view at right angles to Fig. 3.Fig. a top or plan view of the valve block. Fig. 6 a sectional view onthe line 41-41 of Fig. 3. Fig. 7 a face view of one'of the valvesdetached. Fig. 8 a side view of the same. Fig. 9 a broken sectional viewillustrating a modification of the manner of securing the valve block inthe valve chamber.

This invention relates to an improvement in coffee pots, andparticularly to cotton pots in which the coffee is made by percolation.The object of the invention is to provide simple and effective means forpermitting the liquid to enter the generating chamber; and the inventionconsists in the construction hereinafter described and particularlyrecited in the claims.

In carryingcut my invention, I employ a cotl'ee pot 2 of any approveddesign provided at the base with a generating chamber 3 at the top ofwhich is a nipple 4 which is secured in the usual way by a locking ringIn connection with a pot; thus formed l cmploy the usual central tube 6extending, through the cupdike strainer 7 near the upper and in whichthe coilee is placed, and at the end of the lower tube is a valve(fliflfll her 8.

Sitting over the nipple 4 is a valve block 9 the upper end of whichenters the valve chamber 8. This valve has a comparatively large centralpassage 10 and is provided at its upper end with integral lugs Hand 12which lugs may be formed with notches 13 to receive trunnions-H ofvalves 15, 16, these valves being curved corresponding to the innerwalls of the valve block which block is formed with ports 17 and 18 inopposite walls of the block. The bases of the lugs 11 are formed withgrooves 19 adapted to be engaged by ribs 20 struck inward from the sidewalls of the valve chamber 8 and so that the valve chamber may beinterlocked with the valve block and in such position that the ports 17and 18 will stand below the bottom of the valve chamber and be normallyclosed by the valves which are hinged. to the top of the block.

It is apparent and shown in Fig. 9 that the lower portion of the innerwall of the valve chamber might be screw threaded to engage with threadsformed around the head 21 of the "alve block, and instead of forming thevalves with trunnions to enter notches in the lugs 11 and 12, they maybe secured by pins 22 extending through the lo s and through the upper(/HlS of the va.v-es.

In. operation, liquid in the pot 2 will pass through the ports 17 and 18into the generating chamber 3, the valves moving inward to permit suchentrance. W'lieu however, the generating chamber filled, the valves willclose and remain closed until the liquid in the generating chamber hasreached the boiling point when it. will he forced up through the centraltube (3 into the roller containing strainer at the top of the pot. Asthe liquid is discharged from the generating: chamber, the valves willyield to allow additional liquid from the pot to enter the generatingchamber so that the device is purely automatic and maintains a perfectcirculation for liquid into the generating chamber and from that to thestrainer. By arranging the valve block to extend below the valve chamberfree access is had to the ports in the valve block, and thisconstruction permits the ready disengagement of the valve block from thevalve chamber for the purpose of cleaning.

I claim l. The combination with a coffee pot provided with a generatingchamber at its bottom and-with a nipple at the upper end of saidchamber, of a valve block formed with a vertical passage adapting thevalve block to set over the said nipple, a central tube provided at itslower end with a valve cham-, her into which the upper end of the valveblock extends, means for locking the valve block in. said chamber, saidvalve block formed on opposite sides below said valve valve block withsaid chamber, said valve block formed on opposite sides with ports,segmental valves connected with the valve block near its upper end andadapted to close said ports.

3. The combination with a coffee pot formed at the base .with agenerating chamber and a nipple 'at the upper end of said chamber, acentral tube provided at its lower end With a valve chamber, a valveblock formed with a. central opening to set over said nipple, the upperend of the block entering said valve chamber with which it isinterlocked, said valve block formed on opposite sides below the loweredge of said chamber with ports, 111-11 the upper ends with notchedlugs, and provided with trunnions adapted to enter said not-ches wherebythey are hinged to the valve block, said "alves extendinq downward intothe central opening and 1-ross the ports.

In testimony whereof, I have signed this specification in the presenceof two subscribmg Witnesses.

JOSEPH EDWARD JOHNSON. WVitnesses F. J. EKMARK, C. H. ELMORE.

